Utility vehicle
A utility vehicle is provided. The utility vehicle may comprise a vehicle body frame; a dash panel having a first duct port in a substantially center portion widthwise; a hood located in front of the dash panel; a driving power source mounted to a substantially center portion of the vehicle body frame widthwise and positioned behind the dash panel; a transmission joined to the driving power source; and a first air-intake duct provided in a substantially center portion of the vehicle body frame widthwise such that it extends in a substantially forward and rearward direction and passes through the first duct port. Further, an outlet provided at a downstream end portion of the first air-intake duct is coupled to the transmission; and an inlet provided at an upstream end portion of the first air-intake duct is positioned in an upper rear portion of the space above the first duct port.
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1. Field of the Invention
The present invention relates to a utility vehicle including a transmission and an air-intake duct through which cooling air is supplied to the transmission.
2. Description of the Related Art
United States Patent Application Publication No. 2010/0167853 discloses a conventional four-wheel vehicle including a CVT, and an air-intake duct through which cooling air is supplied to the CVT. In this four-wheel vehicle, the CVT has a transmission case body, and an air inlet opens on the upper wall of the transmission case body. An air-intake duct is coupled to the air inlet. The air-intake duct extends substantially forward from the air inlet. The inlet of the air-intake duct opens forward inside a hood. Because of this structure, water which has entered the hood is likely to flow into the CVT through the inlet of the air-intake duct and an air passage, when the four-wheel vehicle is traveling over a water paddle, a river, or the like.
SUMMARY OF THE INVENTIONAn object of the present invention is to improve water-proofness of an air-intake duct.
A utility vehicle of the present invention comprises a vehicle body frame; a dash panel provided in a front portion of the vehicle body frame and having a first duct port in a substantially center portion in a vehicle width direction; a hood provided in a front portion of the vehicle body frame such that the hood is located in front of the dash panel, the hood covering a space defined by the dash panel; a driving power source mounted to a substantially center portion of the vehicle body frame in the vehicle width direction such that the driving power source is positioned behind the dash panel; a transmission joined to the driving power source; and a first air-intake duct provided in a substantially center portion of the vehicle body frame in the vehicle width direction such that the first air-intake duct extends in a substantially forward and rearward direction and passes through the first duct port; wherein an outlet provided at a downstream end portion of the first air-intake duct is coupled to the transmission; and an inlet provided at an upstream end portion of the first air-intake duct is positioned in an upper portion of the space which is above the first duct port, in a rear portion of the space.
Typically, the upper surface of the hood decreases in height from its rear portion toward its front portion. Typically, a portion of the upper surface of the hood, which corresponds to the rear portion of the space covered with the hood is highest. In the above configuration, since the inlet of the first air-intake duct is positioned in the upper portion of the space in the rear portion of the space, the inlet can be positioned higher. This makes it possible to suppress water splashing in the space from reaching the inlet. In addition, since the inlet of the first air-intake duct is positioned above the first duct port, a portion of the dash panel which is located above the first duct port can inhibit the water splashing in the space from moving toward the inlet.
The above and further objects, features and advantages of the invention will more fully be apparent from the following detailed description with reference to the accompanying drawings.
Hereinafter, an embodiment of the present invention will be described with reference to the drawings. The stated directions are referenced from the perspective of a driver riding in the utility vehicle. A rightward and leftward direction conforms to a vehicle width direction. It is supposed that the utility vehicle is in a stopped state on a ground surface which is substantially parallel to a horizontal plane.
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Although in the above embodiment, the engine E is used as a “driving power source” as shown in
Although in the above embodiment, the suspension mechanism 112 is mounted to the support frame 114 as shown in
As this invention may be embodied in several forms without departing from the spirit of essential characteristics thereof, the present embodiments are therefore illustrative and not restrictive, since the scope of the invention is defined by the appended claims rather than by the description preceding them, and all changes that fall within metes and bounds of the claims, or equivalence of such metes and bounds thereof are therefore intended to be embraced by the claims.
Claims
1. A utility vehicle comprising:
- a vehicle body frame;
- a dash panel provided in a front portion of the vehicle body frame and having a first duct port in a substantially center portion in a vehicle width direction;
- a hood provided in the front portion of the vehicle body frame such that the hood is located in front of the dash panel, the hood covering a space defined by the dash panel;
- a driving power source mounted to the substantially center portion of the vehicle body frame in the vehicle width direction such that the driving power source is positioned behind the dash panel;
- a transmission joined to the driving power source; and
- a first air-intake duct provided in the substantially center portion of the vehicle body frame in the vehicle width direction such that the first air-intake duct extends in a substantially forward and rearward direction and passes through the first duct port;
- wherein an outlet provided at a downstream end portion of the first air-intake duct is coupled to the transmission; and
- an inlet provided at an upstream end portion of the first air-intake duct is positioned in an upper portion of the space which is above the first duct port, in a rear portion of the space;
- wherein the first air-intake duct includes: a main duct element extending in the substantially forward and rearward direction such that the main duct element passes through the first duct port; and an introduction duct element provided in the rear portion of the space covered with the hood such that the introduction duct element extends substantially upward from an upstream end portion of the main duct element; the inlet is provided at an upstream end portion of the introduction duct element; an upper end portion of the introduction duct element includes a first duct portion extending substantially vertically, a second duct portion extending substantially vertically, and a coupling duct portion of a substantially-inverted-U-shape for providing communication between an upper end portion of the first duct portion and an upper end portion of the second duct portion, the first duct portion, the second duct portion and the coupling duct portion forming a substantially-inverted-U-shape; the second duct portion is deviated in a rearward direction from the first duct portion when viewed from above; and the inlet is provided at a lower end portion of the second duct portion.
2. The utility vehicle according to claim 1,
- wherein the inlet opens downward so as to face an upper surface of a portion of the dash panel.
3. The utility vehicle according to claim 1,
- wherein
- the inlet is deviated in a rearward direction from the first duct portion when viewed from above and is positioned above a lower end portion of the first duct portion.
4. The utility vehicle according to claim 1,
- wherein
- the inlet opens downward;
- the dash panel has a second duct port through which the introduction duct element passes vertically; and
- at least a portion of the inlet is deviated in the vehicle width direction from the second duct port when viewed from above and opens so as to face an upper surface of a portion of the dash panel.
5. The utility vehicle according to claim 1, comprising:
- a drain trap having a substantially bottomed tube shape;
- wherein the drain trap has an opening at an upper end portion thereof; and
- the upper end portion of the drain trap is removably coupled to a lower end portion of the introduction duct element.
6. The utility vehicle according to claim 1,
- wherein the upstream end portion of the main duct element and a downstream end portion of the introduction duct element are removably coupled together via a flexible connecting portion.
7. The utility vehicle according to claim 1,
- wherein the upstream end portion of the main duct element and a downstream end portion of the introduction duct element are removably coupled together via a rubber-made connecting portion.
8. The utility vehicle according to claim 1,
- wherein a suspension mechanism is mounted to a bent portion of the upper end portion of the introduction duct element, the bent portion having a substantially-inverted-U-shape.
9. The utility vehicle according to claim 1, comprising:
- a second air-intake duct provided in the substantially center portion of the vehicle body frame in the vehicle width direction such that the second air-intake duct extends in the substantially forward and rearward direction and passes through the first duct port;
- wherein the driving power source is an engine;
- an outlet provided at a downstream end portion of the second air-intake duct is coupled to the engine; and
- an inlet provided at an upstream end portion of the second air-intake duct is positioned in the space covered with the hood.
10. A utility vehicle comprising:
- a vehicle body frame;
- a dash panel provided in a front portion of the vehicle body frame and having a first duct port in a substantially center portion in a vehicle width direction;
- a hood provided in the front portion of the vehicle body frame such that the hood is located in front of the dash panel, the hood covering a space defined by the dash panel;
- a driving power source mounted to the substantially center portion of the vehicle body frame in the vehicle width direction such that the driving power source is positioned behind the dash panel;
- a transmission joined to the driving power source; and
- a first air-intake duct provided in the substantially center portion of the vehicle body frame in the vehicle width direction such that the first air-intake duct extends in a substantially forward and rearward direction and passes through the first duct port;
- wherein an outlet provided at a downstream end portion of the first air-intake duct is coupled to the transmission;
- an inlet provided at an upstream end portion of the first air-intake duct is positioned in an upper portion of the space which is above the first duct port, in a rear portion of the space;
- wherein the first air-intake duct includes: a main duct element extending in the substantially forward and rearward direction such that the main duct element passes through the first duct port; and an introduction duct element provided in the rear portion of the space covered with the hood such that the introduction duct element extends substantially upward from an upstream end portion of the main duct element; wherein the inlet is provided at an upstream end portion of the introduction duct element;
- wherein the introduction duct element includes: a base duct portion extending substantially upward from the upstream end portion of the main duct element; a first duct portion extending substantially vertically in a position above the base duct portion; a second duct portion extending substantially vertically in a position behind the first duct portion; a first coupling duct portion of a substantially-L-shape for providing communication between an upper end portion of the base duct portion and a lower end portion of the first duct portion; a second coupling duct portion of a substantially-inverted-U-shape for providing communication between an upper end portion of the first duct portion and an upper end portion of the second duct portion; the first duct portion is deviated in the vehicle width direction from the base duct portion when viewed from above; and the inlet is provided at a lower end portion of the second duct portion.
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Type: Grant
Filed: Oct 7, 2011
Date of Patent: Oct 15, 2013
Patent Publication Number: 20130087396
Assignee: Kawasaki Jukogyo Kabushiki Kaisha (Kobe-shi)
Inventors: Seiji Itoo (Akashi), Hideaki Kii (Kakogawa)
Primary Examiner: Hau Phan
Application Number: 13/269,341
International Classification: B60K 11/00 (20060101);